tofsee | 6063cdcff6aef2676a221bd82b052bc15a8ae10f4eec04dade0a454220c7a732

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 22:04

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General

Target

JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe
Size

12.9MB
MD5

d3758575fd9f846d85b214009243fd7a
SHA1

91c5274faaa9c810fa7ba8f546cfe8ea7a3b4465
SHA256

6063cdcff6aef2676a221bd82b052bc15a8ae10f4eec04dade0a454220c7a732
SHA512

7bbbbbb36646bd75f84d9d0cdc79fc920004902c4601789fcf5330266a2ed3f7397b148875ebb851fb868188ce5831dcf7be5cca34ac68f9fbe55617c05e2c3c
SSDEEP

49152:67G000000000000000000000000000000000000000000000000000000000000c:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\vkwgszyj = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2736	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\vkwgszyj\ImagePath = "C:\\Windows\\SysWOW64\\vkwgszyj\\slzldxzm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2268	slzldxzm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2268 set thread context of 2912	2268	slzldxzm.exe	43

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2436	sc.exe
2876	sc.exe
2492	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	slzldxzm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2532	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	30
PID 2688 wrote to memory of 2532	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	30
PID 2688 wrote to memory of 2532	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	30
PID 2688 wrote to memory of 2532	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	30
PID 2688 wrote to memory of 2324	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	32
PID 2688 wrote to memory of 2324	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	32
PID 2688 wrote to memory of 2324	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	32
PID 2688 wrote to memory of 2324	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	32
PID 2688 wrote to memory of 2492	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	34
PID 2688 wrote to memory of 2492	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	34
PID 2688 wrote to memory of 2492	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	34
PID 2688 wrote to memory of 2492	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	34
PID 2688 wrote to memory of 2436	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	36
PID 2688 wrote to memory of 2436	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	36
PID 2688 wrote to memory of 2436	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	36
PID 2688 wrote to memory of 2436	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	36
PID 2688 wrote to memory of 2876	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	38
PID 2688 wrote to memory of 2876	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	38
PID 2688 wrote to memory of 2876	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	38
PID 2688 wrote to memory of 2876	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	38
PID 2688 wrote to memory of 2736	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	41
PID 2688 wrote to memory of 2736	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	41
PID 2688 wrote to memory of 2736	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	41
PID 2688 wrote to memory of 2736	2688	JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe	41
PID 2268 wrote to memory of 2912	2268	slzldxzm.exe	43
PID 2268 wrote to memory of 2912	2268	slzldxzm.exe	43
PID 2268 wrote to memory of 2912	2268	slzldxzm.exe	43
PID 2268 wrote to memory of 2912	2268	slzldxzm.exe	43
PID 2268 wrote to memory of 2912	2268	slzldxzm.exe	43
PID 2268 wrote to memory of 2912	2268	slzldxzm.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vkwgszyj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\slzldxzm.exe" C:\Windows\SysWOW64\vkwgszyj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vkwgszyj binPath= "C:\Windows\SysWOW64\vkwgszyj\slzldxzm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vkwgszyj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vkwgszyj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2736

C:\Windows\SysWOW64\vkwgszyj\slzldxzm.exe
C:\Windows\SysWOW64\vkwgszyj\slzldxzm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3758575fd9f846d85b214009243fd7a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\slzldxzm.exe

Filesize
14.7MB

MD5
846cba36fcb8160336211cd23cfb63c8

SHA1
845030fc001d96205f83d00a74266a22185ee7f0

SHA256
9801ee43c87074c11c36fefc4cacfd4b761ebacbe098f9cb072d46632d7cc6c8

SHA512
95f578ad1036c5dfd291d962e34b5d6939bd19f5eda07b6a4c285f76fb57b2011b1151df9124a3a9e5a56dc67ca76980843f807868bec051a4d4ff60f36d3f8d

Download Submit
memory/2268-17-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/2688-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2688-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-8-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/2688-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

Filesize
1024KB

Download
memory/2688-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2912-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2912-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads